<form action="index.php?r=Administrador/BuscarPorDNI" id="_Form" class="classForm" method="post" style="background-color:#FEFBED;   
    border-radius: 4px 4px 0 0;
    border-width: 1px;
    box-shadow: none;
    margin-left: 0;
    margin-right: 0; padding:20px; border: solid 1px #DFB5B4; margin:20px ">			
			<div class="row-fluid">				
				<div style="text-align:center ">
					<form class="form-inline ">					
						<span class="help-inline">	DNI </span>
						<input type="text" class="form-control" name="nroDocumento" required="required" placeholder="DNI">	
				    </form>	
				</div>		
			</div>
			<div class="row-fluid">	
					<div style="text-align:center">		
						<p>
							 <button class="btn btn-large btn-danger" type="button" id="aceptar">Buscar</button>
						</p>
					</div>
			</div>		
</form>